<template>
    <div>
        <!-- 面包屑导航区域 breadcrumb ブレッドクラム separator セパレーター 分隔器-->
        <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>商品管理</el-breadcrumb-item>
        <el-breadcrumb-item>商品列表</el-breadcrumb-item>
        </el-breadcrumb>
         <!-- 卡片视图区域 -->
         <el-card>
             <el-row :gutter="20">
                 <el-col :span="8">
                       <el-input 
                        placeholder="请输入内容" 
                        v-model="queryInfo.query" 
                        clearable
                        @clear = "getGoodsList"
                       >
                            <el-button 
                                slot="append" 
                                icon="el-icon-search"
                                @click="getGoodsList"
                            ></el-button>
                        </el-input>
                 </el-col>
                 <el-col :span="4">
                     <el-button 
                        type="primary"
                        @click="goAddPage"
                     >
                         添加商品
                     </el-button>
                 </el-col>
             </el-row>
             <!-- table 表格区域 -->
             <el-table
                :data="goodslist"
                border
                stripe
             >
                <el-table-column type="index"></el-table-column>
                <el-table-column label="商品名称" prop="goods_name"></el-table-column>
                <el-table-column label="商品价格(元)" prop="goods_price" width="95px"></el-table-column>
                <el-table-column label="商品重量" prop="goods_weight"  width="70px"></el-table-column>
                <el-table-column label="创建时间" prop="add_time"  width="160px">
                    <template slot-scope="scope">
                        {{scope.row.add_time | dateFormat}}
                    </template>
                </el-table-column>
                <el-table-column label="操作"  width="120px">
                    <template slot-scope="scope">
                        <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
                        <el-button 
                            type="danger" 
                            icon="el-icon-delete" 
                            size="mini"
                            @click="removeGoodsById(scope.row.goods_id)"
                        ></el-button>
                    </template>                        
                </el-table-column>
             </el-table>
             <!-- 分页 -->
             <el-pagination
                @size-change = "handleSizeChange"
                @current-change = "handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes = "[5, 10, 15,20]"
                :page-size = "queryInfo.pagesize"
                layout = "total, sizes, prev, pager, next, jumper"
                :total="total"  
                background           
             >                 
             </el-pagination>
         </el-card>
    </div>
</template>
<script>
export default {
    data(){
        return {
            queryInfo:{
               query: '',
               pagenum: 1,
               pagesize: 10
            },
            // 每页的商品列表数据
            goodslist:[],
            // 总数据条数
            total:0
        }
    },
    created(){
        this.getGoodsList();
    },
    methods:{
        //根据分页获取商品列表
        async getGoodsList(){
            const {data:res} = await this.$http.get('goods',{
                params:this.queryInfo
            })
            if(res.meta.status !== 200){
                return this.$message.error('请求商品列表数据失败')
            }
            this.$message.success('请求商品列表数据成功')
            this.goodslist = res.data.goods
            this.total = res.data.total
            console.log(res.data)
        },
        handleSizeChange(newsize){
            this.queryInfo.pagesize = newsize
            this.getGoodsList()
        },
        handleCurrentChange(newPage){
             this.queryInfo.pagenum = newPage
              this.getGoodsList()
        },
        async removeGoodsById(id){
            const confirmResult =await  this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(err => err)
            if(confirmResult !== 'confirm'){
                return this.$message.info('已取消删除')
            }
            const {data:res} = await this.$http.delete(`goods/${id}`)
            if(res.meta.status !== 200){
                return  this.$message.error('删除商品失败')
            }
            this.$message.success('删除商品成功')
            this.getGoodsList()
        },
        goAddPage(){
            this.$router.push('/goods/add')
        }
    },
    
}
</script>
<style lang="less" scoped>

</style>